Changes coming to student loans!

Federal Grants and Loan changes will take place because legislation was added to the health care overhaul that passed the House on Sunday night by a vote of 220-211. The bill containing the changes if passed by the Senate,will eliminate the private lenders in originating federal student loans, a change that the Congressional Budget Office estimates will save between $6 billion to $7 billion per year. In the past the government has paid private banks billions of dollars to encourage them to lend to students and still guaranteed the loans.
Arne Duncan, Education Secretary said, of the $61 billion in savings expected, $36 billion will be put back into the Pell Grants the rest will be used to reduce the federal debt. "We can plow those savings back to students and make college dramatically more affordable."

If you have read this far can you figured out how government works? If you save $6 Billion to $7 Billion where do you get $36 Billion to pay down the debt? I am still working trying to find out( Maybe Arne was talking over a period of many years, I find out.)